Ge14Br8(PEt3)4: Ein Subhalogenidcluster des Germaniums

Kunz, Tanja; Schrenk, Claudio; Schnepf, Andreas

doi:10.1002/ange.201712247

Angewandte Chemie

2018

DOI: 10.1002/ange.201712247

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Ge₁₄Br₈(PEt₃)₄: Ein Subhalogenidcluster des Germaniums

Tanja Kunz

Claudio Schrenk

Andreas Schnepf

Abstract: Das Erwärmen einer metastabilen Ge I Br-Lçsung auf Raumtemperatur führt zum ersten strukturell charakterisierten, metalloiden Subhalogenidcluster Ge 14 Br 8 (PEt 3 ) 4 (1). Des Weiteren kann 1 als der erste isolierte binäre Halogenidcluster auf dem Wegv on Ge I Br zu elementarem Germanium gesehen werden, welcher Einblick in den komplexen Reaktionsmechanismus der Disproportionierungsreaktion gewährt. Quantenchemische Rechnungen weisen zusätzlichd arauf hin, dass in 1 eine klassische Bindungssituation realisiert… Show more

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Halides of the Heavier Group 14 Homologues Germanium, Tin, and Lead—A Journey through Unusual Compounds and Oxidation States

Kunz

Schnepf

2018

Chemistry A European J

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Classical halides of the heavier Group 14 homologues germanium, tin, and lead are common precursors for the synthesis of exciting compounds, such as polyhedral clusters. To get access to larger metalloid cluster compounds of Group 14, the disproportionation reaction of metastable monohalide solutions, accessible through a preparative co‐condensation reaction, proved to be quite successful. As the identity of the subvalent halides within the metastable solutions were yet unknown the reaction course from a monohalide precursor to a metalloid cluster was mostly unidentified. This might change now, as a first subhalide cluster [Ge14Br8(Et3P)4] could be characterized, being the first trapped intermediate of the disproportionation reaction of Group 14 subhalides. All these aspects are included within this Minireview, together with a short historical overview, dealing with the development of the preparative co‐condensation technique out of the matrix isolation technique, being the essential first step of the synthesis of metastable monohalide solutions of the heavier Group 14 elements Ge and Sn.

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Halides of the Heavier Group 14 Homologues Germanium, Tin, and Lead—A Journey through Unusual Compounds and Oxidation States

Kunz

Schnepf

2018

Chemistry A European J

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Three different ways for the synthesis of the metalloid cluster [Ge₉(Hyp^tBuPh2)₃]⁻

Kunz

Şahin

Schnepf

2022

Zeitschrift anorg allge chemie

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Dedicated to Professor Cameron Jones on the occasion of his 60th birthday.The metalloid cluster [Ge 9 (Hyp tBuPh2 ) 3 ]K (1) (Hyp tBuPh2 =Si-(SiMe 3 ) 2 (SitBuPh 2 )) is obtained through three different reaction courses. These are the disproportionation reaction of Ge I Br and subsequent substitution of the bromine atoms, the reaction of the germanium subhalide cluster Ge 14 Br 8 (PEt 3 ) 4 with KHyp tBuPh2 and the reaction of the Zintl phase K 4 Ge 9 with ClHyp tBuPh2 . The different reaction courses are described, together with the characterization and follow-up reaction of the new metalloid cluster 1.

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Ge₁₄Br₈(PEt₃)₄: Ein Subhalogenidcluster des Germaniums

Cited by 2 publications

References 45 publications

Halides of the Heavier Group 14 Homologues Germanium, Tin, and Lead—A Journey through Unusual Compounds and Oxidation States

Halides of the Heavier Group 14 Homologues Germanium, Tin, and Lead—A Journey through Unusual Compounds and Oxidation States

Three different ways for the synthesis of the metalloid cluster [Ge₉(Hyp^tBuPh2)₃]⁻

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Ge14Br8(PEt3)4: Ein Subhalogenidcluster des Germaniums

Cited by 2 publications

References 45 publications

Halides of the Heavier Group 14 Homologues Germanium, Tin, and Lead—A Journey through Unusual Compounds and Oxidation States

Halides of the Heavier Group 14 Homologues Germanium, Tin, and Lead—A Journey through Unusual Compounds and Oxidation States

Three different ways for the synthesis of the metalloid cluster [Ge9(HyptBuPh2)3]−

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Ge₁₄Br₈(PEt₃)₄: Ein Subhalogenidcluster des Germaniums

Three different ways for the synthesis of the metalloid cluster [Ge₉(Hyp^tBuPh2)₃]⁻